body{
    font-family: system-ui, "PingFang SC", STHeiti, sans-serif;
    overflow: hidden;
}

main{
    margin: 0 auto;
    position: relative;
    user-select: none;
}

img{
    position: absolute;
}

@media (prefers-color-scheme: dark) {
    body {
        background: #292a2d;
        color: #fff;
    }
}

